Answers for "javascript sort map keys alphabetically"

array sort by alphabetical javascript

users.sort((a, b) => a.firstname.localeCompare(b.firstname))

javascript string array sort alphabetically

var items = ['réservé', 'premier', 'communiqué', 'café', 'adieu', 'éclair'];
items.sort((a, b) =>
   a.localeCompare(b)//using String.prototype.localCompare()
);